Review on Nobsound Dual TPA3116 Digital Power Amplifier - High-Fidelity Stereo Amp With NE5532P Pre-Amp, Audiophile-Grade 2.0 Channel And 100W×2 Output (Black) by Efraine Cruise

I bought this as part of a setup for a sound system on my porch. I attached a bluetooth receiver to it, and have it powering two 45 watt outdoor speakers. I have the amplifier set at a little less than half gain, and I'm getting plenty of sound out of the speakers. With my iPhone at near full volume it's plenty loud enough for a decent party on my 1/3 acre property; and perfect for background noise at low volume. The amplifier works just as well at full gain, no distortion, just was too much volume for my purposes. A nice set of speakers will put out tons of sound with this thing.I'm using a 19v 3.3A laptop power supply I had hanging around in my garage. According to the seller you can feed this thing more power than that and get even more gain out of it.I'm not that familiar with amplifier classes, but this one puts out nice clean sound and is silent when there is no signal going to it (no hum or hiss from the speakers).Customer service is awesome. They are super fast to respond, and quickly resolved my issue. Really satisfied with them.